the number two spot was a tie between portland, oregon and san francisco. >>> k.c.'s about to become even more bikable. there is plans for new bike lanes, leading to concerns about sharing the road. >>> transportation reporter adam tuss is live with more on the effort to help drivers and cyclists all get along. >> reporter: yeah, jim, you may not know this, but d.c. is home to the largest bike-sharing program in the country. so many people are riding bikes around here that drivers, pedestrians, and cyclists are all having to re-learn how to share the road. of course, as the city looks to add even more bike lanes, neighborhood groups are telling city leaders there needs to be more education. you don't have to wait long to find some cyclists running red lights. we saw it today. others say it's a two-way street. coming up at 5:00, we talked to local bike groups about the need for all cyclists to always obey the rules of the road. find out what the district is doing about it, against that's at 5:00. reporting live in northwest, adam tuss, news4. >>> breaking news, a last